Question

how many years will be required to double the principal amount of Rs. 5000/- by simple interest at the rate of 4 p.c.p.a. ?​

Answer 1

Answer:

The time taken to double the amount with simple interest at rate of 4% is 25 years.

Step-by-step explanation:

Rate of interest, r  =  4%  = 0.04

Principal Amount, P = Rs. 5000/-

Final Amount, A  = 2 × Principal Amount = Rs 10,000/-

The time in years is t

From the formula for simple interest, A  = P(1 + rt)

we get

                 10000 = 5000( 1 + 0.04t)

⇒              2 = 1 + (0.04 t)

⇒              t = $\frac{1}{0.04}$  = 25 years.

The time taken to double the amount with simple interest at rate of 4% is 25 years.

Answer 2

Answer:

50

Step-by-step explanation: